Command Reference Guide

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STANDARD Printed by: Nora Chuang [nchuang] STANDARD

/build/1111/BRICK/man1/!!!intro.1

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command(1) command(1)

NAME

command - execute a simple command

SYNOPSIS

command command_name [argument ...]

DESCRIPTION

command enables the shell to treat the arguments as a simple command, suppressing the shell function

lookup.

If command_name is not the name of the function, the effect of command is the same as omitting com-

mand.

OPERANDS

command recognizes the following operands:

command_name The name of a HP-UX command or a shell built-incommand.

argument One or more strings to be interpreted as arguments to command_name.

The command command is necessary to allow functions that have the same name as a command to call

the command (instead of a recursive call to the function).

Nothing in the description of command is intended to imply that the command line is parsed any

differently than any other simple command. For example,

command a | b ; c

is not parsed in any special way that causes | or ; to be treated other than a pipe operator or semicolon

or that prevents function lookup on b or c.

EXTERNAL INFLUENCE

Environment Variables

PATH determines the search path used during the command search.

RETURN VALUE

command exits with one of the following values:

• If command fails:

126 The utility speciﬁed by the command_name is found but not executable.

127 An error occurred in the command utility or the utility speciﬁed by command_name

is not found.

• If

command does not fail:

The exit status of command is the same as that of the simple command speciﬁed by the

arguments:

command_name[argument ...]

EXAMPLES

Create a version of the cd command that always prints the name of the new working directory whenever

it is used:

cd() {

command "$@" >/dev/null

pwd

}

Circumvent the redeﬁned cd command above, and change directories without printing the name of the

new working directory:

command cd